Autumnal Equinox 2024jj

Autumnal Equinox 2024jj. The autumnal equinox occurs in september each year, and in the northern hemisphere the date marks the end of summer and beginning of autumn. Autumnal equinox, two moments in the year when the sun is exactly above the equator and day and night are of equal length;

A visual guide to the autumnal equinox. Normally, the autumn equinox falls between 22 and 24 september, and this year the equinox occurs on 22 september at 13:44 bst.